Strength of Material (General Engineering) (SSC JE)

Total Questions: 50

21. What will be the shear force at the centre in a simply supported beam of span 5 m having U.D.L of 2 kN/m in entire length? [JSSC JE (GEN. ENGG)-2017 ]

Correct Answer: (a) 0 kN
Solution:


22. Indeterminate structures are those when [JSSC JE (GEN. ENGG)-2017 ]

Correct Answer: (a) number of reactions are more than number of equilibrium conditions
Solution:

Indeterminate structures–These structure are not capable of being analyzed by use of basic equilibrium equations.
• In this structure number of reactions are more than number of equilibrium conditions.
Example–Fixed beam, continuous beam, fixed arches. Two hinged arches, portals multistoried frames etc.

23. A cantilever beam having square cross section of side 'a' is subjected to an end load. If 'a' is increased by 19%, then the tip deflection decreases approximately - [RSMSSB JE(E&M) Diploma- 20.05.2022 ]

Correct Answer: (d) 50%
Solution:

24. A column of length 'l' is fixed at its both ends. The equivalent length of the column is - [RSMSSB JE(E&M) Diploma- 20.05.2022 ]

Correct Answer: (b) 0.5 l
Solution:


25. A strut is made of a bar of circular section and 5 m long which pin jointed at both ends. When the bar is used as a simple supported beam gives a midspan deflection of 10 mm with a load of 10 N at center. Critical load of the strut is - [RSMSSB JE(E&M) Diploma- 20.05.2022 ]

Correct Answer: (c) 1029 N
Solution:


26. Uniformly varying load on a beam is also known as: [APPSC AE PRE.-15.05.2022 ]

Correct Answer: (c) Triangular load
Solution:

Uniformly varying load– A uniformly varying load is one which is spread over a beam in such a manner that rate of loading varies point to point along the beam.
• The load is zero at one end and increases uniformly to the other end.
• Such load is known as triangular load.

27. Which of the following is the overhanging beam? [APPSC AE PRE.-15.05.2022 ]

Correct Answer: (b)
Solution:

Overhanging Beam–If the end portion of the beam is extended beyond the support is known as overhanging beam.
Types of beam-

28. The shear stress along the principal plane subjected to maximum principal stress is [BPSC AE (GEN ENGG.)-03.12.2012 ]

Correct Answer: (c) zero
Solution:

• Principal planes are the planes of zero shear stress these planes carry only normal stresses.
• Stresses on an inclined plane–

29. A cantilever beam AB carries loading as shown in the following figure, which of the following is the SFD for the beam? [APPSC AE PRE.-15.05.2022 ]

Correct Answer: s

30. da [wf]

Correct Answer: afa